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4X0139's Sad Story

Thirty-five years ago, a female chimpanzee—identified only as "4X0139"—was intentionally infected with the hepatitis B virus by experimenters.

She was then infected with HIV, hepatitis C, and other illnesses and has been locked in a laboratory cage for use in more experiments ever since.

This happened even though a landmark report on the scientific validity of experiments on intelligent, sensitive, remarkable chimpanzees concluded that "most current biological research use of chimpanzees is not necessary"—including for hepatitis B.

Read that again:


And yet without your voice and your outrage, these tests can go on and on.

This experiment was ordered by the Arrowhead Research Corporation. Please give 4X0139 one minute of your time and send a letter to the company asking it to join other major drug companies—including Merck, GlaxoSmithKline, Gilead Sciences, and Novo Nordisk—that have pledged to stop performing and funding these unethical and archaic experiments on chimpanzees.


Dear [Decision Maker],

[Your Name]

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